here you go man...looks like you can get a drop in K&N air breather for around 48 bucks at autozone.. or like 45 for an airraid .,,or a spector for like 23...then do the gotts mod... and you will get as just as much as the intake in my opinion .. but i looked up a few on ebay for you


just looked really quick on ebay
http://cgi.ebay.com/ebaymotors/S-B-Cold-Air-Intake-05-06-07-08-Ford-F150-Trucks-5-4-V8_W0QQcmdZViewItemQQhashZitem5d276088c5QQitemZ400 092596421QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAcces sories

http://cgi.ebay.com/ebaymotors/AEM-BRUTE-FORCE-AIR-INTAKE-04-06-FORD-F150-5-4_W0QQcmdZViewItemQQhashZitem2ea040f7e7QQitemZ2002 57107943QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccess ories

 

Better air flow usually means more dirt in your engine. With the Gotts mod, for $15 you can have 'better' air flow and keep the OEM filter.

 

how do you figure more dirt in your engine?

 

Most aftermarket filters do not filter as well the OEM filter; how else would they allow more air to flow.

 

well i have had a K&N drop in filter in my 02 since about 40 miles.........till about 80000miles...from 80000miles to 140000miles its got a cold air intake... never had one problem with oil being dirty and i run the oil in that to between 10000 to 16000 miles on every oil change... i keep the air filters very maintained

 

A good flowing exhaust, CAI, and programmer are the top 3
improvements for performance and possible gas mileage gains (if you can keep your foot off of the pedal). If your plans are to eventually do all three, then there is no order that needs to be followed to purchase these items. Go with any one of the three first, as budget allows.